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Finding the Fourth Proportional to 424,817.70, 637,226.55 and 406,616.10

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Solution

The fourth proportional to 424,817.70, 637,226.55 and 406,616.10 is: 609,924.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,817.70 : 637,226.55 = 406,616.10 : x
  2. Step 2: Convert to fraction form
    424,817.70/637,226.55 = 406,616.10/x
  3. Step 3: Cross multiply
    424,817.70x = 637,226.55 × 406,616.10
  4. Step 4: Simplify right side
    424,817.70x = 259,106,574,577.46
  5. Step 5: Solve for x
    x = 259,106,574,577.46/424,817.70
  6. Step 6: Final answer
    x = 609,924.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.